JP4363392B2 - In-vehicle lighting device - Google Patents

Description

  The present invention relates to an in-vehicle illumination device that is mounted in a vehicle, and relates to an in-vehicle illumination device that exhibits an effect of welcoming an occupant by light, with the illumination mode changing according to the seating of each occupant.

2. Description of the Related Art Conventionally, as an in-vehicle lighting device installed in a vehicle interior of a vehicle, a room light attached to a vehicle ceiling portion that is turned on or off in response to opening / closing of a door has been generally used.
As another example of the in-vehicle illumination device, for example, Patent Literature 1 discloses an in-vehicle illumination device having a function and an effect of guiding occupants to a seat by combining illumination lights having different brightnesses. . As described above, the in-vehicle lighting device installed in the passenger compartment of the vehicle has additional functions such as a function of guiding the occupant and an effect of welcoming the occupant in addition to the original lighting function. It is becoming necessary to prepare.

JP-A-3-28037

  It is an object of the present invention to provide an in-vehicle illumination device that functions as a “welcome light” having a lighting effect of individually welcoming an occupant in addition to an illumination function.

  The present invention includes an opening / closing detection means for detecting an opening / closing operation of a door of a vehicle, a seating detection means for detecting a seating of an occupant on the first seat, and a second seat installed in a front row of the first seat. In-vehicle illumination apparatus comprising an irradiating means attached to a seat, wherein the irradiating means is attached to left and right side portions of a lower surface of a cushion base on which a cushion pad of the second seat is placed and supported. It comprises a side irradiating means and a rear irradiating means attached to the rear portion of the lower surface of the pedestal of the second seat, and the side irradiating means and the rear irradiating means are in a state in which the irradiated light is directed downward. When the opening / closing detection means detects the opening operation of the door, the side irradiation means and the rear irradiation means are turned on, and when the seating detection means detects the occupant's seating, the side irradiation means Off The only rear illumination means, characterized in that the lighting is a vehicle within the lighting system.

  In the present invention, the first seat is a seat (seat) to which seating detecting means (for example, a seating sensor) for detecting the seating of an occupant is attached. The second seat is a seat installed in a row in front of the first seat (preferably in a row immediately before), and an irradiating means for irradiating illumination light is attached to the lower surface of the pedestal. It is a seat. Taking a three-row seat type vehicle as an example, the second-row seat and / or the third-row seat can be used as the “first seat” of the present invention. The first row seat and / or the second row seat can be used as the “second seat” of the present invention.

  According to the in-vehicle illumination device of the present invention, the irradiating means is attached to the lower surface of the base of the second seat, not to the ceiling of the vehicle compartment. This irradiating means is attached in a state where the irradiating light is directed downward. For this reason, when an occupant gets into the vehicle interior of the vehicle, light is indirectly irradiated from the floor side in the vehicle interior, not from above the vehicle interior. In this case, since it becomes indirect illumination, it is not only easy on the eyes, but also increases the visibility of the occupant's feet, so the safety in the passenger compartment is improved.

  According to the in-vehicle lighting device of the present invention, when the occupant opens the door, the opening operation of the door is detected by the open / close detection means, and the irradiation provided on both sides and the rear of the lower surface of the base of the second seat is provided. The means is lit and the periphery of the base of the second seat is brightened. For this reason, when an occupant gets into the vehicle at night or the like, the surroundings of the seat are surrounded by light, so that a fantastic rendering effect is brought about as if the seat is lifted up. Next, when the occupant sits on the first seat, the side irradiation means attached to the side of the lower surface of the base of the second seat installed in the front row of the first seat is turned off, and the second Only the rear irradiation means attached to the rear part of the lower surface of the base of the seat is lit. For this reason, when the occupant is seated on the first seat, an effect is produced as if light approaches the occupant. As described above, the in-vehicle illumination device according to the present invention detects the seating of the occupant and changes the light irradiation mode, and thus exhibits an effect of welcoming each occupant individually. That is, the in-vehicle illumination device according to the present invention can exhibit a function as a so-called “welcome light”.

  Further, the present invention is the in-vehicle illumination device characterized in that when only the rear irradiation unit is turned on, the illuminance of the rear irradiation unit increases. By increasing the illuminance of the rear irradiating means, the effect of greeting with light when an occupant is seated is more effectively exhibited.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 shows a one-box type vehicle to which the in-vehicle illumination device according to the present embodiment is applied.
As shown in FIG. 1, the in-vehicle lighting device 20 according to the present embodiment is applied to a one-box type vehicle 2 provided with a total of three rows of seats 4, 6, 8 at the front, middle, and rear. It is. Of the three rows of seats 4, 6 and 8, the seat 6 in the second row from the front corresponds to the “first seat” in the present invention. Of the three rows of seats 4, 6, and 8, the seat 4 in the first row from the front corresponds to the “second seat” in the present invention.
The in-vehicle lighting device 20 according to the present embodiment functions as a welcome light that exhibits the effect of welcoming the occupant when the occupant who enters the vehicle sits on the seat 6 in the second row.

  FIG. 2 is a side view showing the positional relationship between the first row of seats 4 and the second row of seats 6, in which the irradiation means 40 is attached to the seat 4 and the seating detection means 30 is attached to the seat 6. It shows the state. FIG. 3 is a perspective view of the seat 4 in the first row. The outline of the entire seat is indicated by a two-dot broken line, and the irradiation means 40 attached to the lower surface 13 of the base 12 is indicated by a solid line or a broken line. FIG. 4 is a perspective view of the seats 6 in the second row. The outline of the entire seat is indicated by a two-dot broken line, and the seating detection means 30 installed inside the cushion pad 10 is indicated by a solid line. FIG. 5 is a perspective view of the irradiation means 40 attached to the base 12 and the lower surface 13 of the seat 4 in the first row, and FIG. 6 is a front view of the seat 4 in the first row as seen from the front. FIG. 7 is a side view of the first row of seats 4 as viewed from the left side.

  The in-vehicle lighting device 20 according to the present embodiment includes an open / close detection unit that detects an opening / closing operation of the door 9 of the vehicle, a seating detection unit 30 that detects the seating of an occupant on the seat 6 in the second row from the front, It is comprised from the irradiation means 40 attached to the lower surface 13 of the base 12 of the seat 4 of the 1st row from the front.

  The opening / closing detection means is means that can detect the opening / closing operation of the door 9 of the vehicle by an occupant, and corresponds to a door switch that is widely used in general. Such door switches are used, for example, for room lights that are turned on and off in conjunction with opening and closing of the door. Of course, as long as the opening / closing operation of the door 9 can be detected, not only such a door switch but also any existing or known sensors can be used as the opening / closing detection means.

  The seating detection means 30 is a means for detecting the seating of an occupant on a seat (seat), and a pressure sensor or the like that is widely used generally corresponds to this. Such a pressure-sensitive sensor is used, for example, as a warning lamp for displaying that a seat belt is not worn even though an occupant is seated. Of course, as long as it is possible to detect that the occupant is seated, not only such a pressure-sensitive sensor but also any existing or known sensors can be used as the seating detection means. For example, a temperature sensor that can detect the seating by detecting the body temperature of the occupant, an infrared sensor that optically detects the seating operation of the occupant, and the like can be used as the seating detection means.

  The irradiation means 40 is light irradiation means attached to the lower surface 13 of the base 12 of the seat 4 in the first row. As such an irradiating means 40, for example, a lamp using an LED or a light bulb as a light source is used. The irradiation means 40 includes side irradiation means 42 attached to the left and right sides of the lower surface 13 of the pedestal 12 and a rear irradiation means 44 attached to the rear portion of the lower surface 13 of the pedestal 12.

As shown in FIGS. 3 and 5, the side irradiation means 42 attached to both sides of the lower surface 13 of the pedestal 12 includes two LED modules 42 a and 42 b attached to the right side of the lower surface 13 of the pedestal 12, and It consists of a total of four LED modules, two LED modules 42c and 42d attached to the left side of the lower surface 13 of the base 12. The rear irradiation means 44 attached to the rear part of the lower surface 13 of the base 12 includes two LED modules 44a and 44b attached to the right side in the rear part, and two LED modules 44c and 44d attached to the left side in the rear part. It consists of a total of four LED modules. Two LED modules 44a and 44b on the right side and two LED modules 44c and 44d on the left side are attached adjacent to each other in the front-rear direction.
In addition, although the rear part irradiation means 44 has shown the example comprised by the LED module 44a-44d of a total of four each by two right and left, it is not limited to such an aspect. For example, the rear irradiating means 44 may be constituted by a total of two LED modules, one each on the left and right, and may have a configuration in which the bases in the LED modules are in two rows.

  As shown in FIG. 5, the pedestal 12 for placing and fixing the first row of seats 4 in the vehicle is a cushion pedestal for placing and supporting the cushion pad of the seat 4. The pedestal 12 is a flat pedestal having a total of four leg portions 15a to 15d, and is formed by welding or bending a metal plate such as an iron plate. The side part and the rear part of the pedestal 12 are bent into a crank shape to form an attachment part 14 for attaching the LED modules 42a to 42d and 44a to 44d. The LED modules 42a to 42d and 44a to 44d are mounted at a position one level higher than the surface on which the leg portions 15a to 15d are mounted in a state where the irradiated light is directed at least downward. In order to attach the LED modules 42 a to 42 d and 44 a to 44 d to the attachment portion 14, any means such as an adhesive or screwing may be used. Note that the number and position of the LED modules installed on the lower surface 13 of the pedestal 12 can be appropriately changed according to the required illuminance and illumination mode.

  As shown in FIG. 5, a synthetic resin shield 18 is attached around the base 12 of the seat 4 in the first row. The shield 18 is made of a hard synthetic resin formed into a plate shape by injection molding or the like. By installing the shield 18 around the base 12, the periphery of the irradiation means 40 is surrounded by the shield 18. For this reason, it is prevented that the light irradiated by the irradiation means 40 dissipates to the direction other than the downward direction and directly enters the eye, and the effect of indirect lighting by the in-vehicle lighting device 20 is enhanced. Moreover, by attaching the shield 18 around the irradiation means 40, the LED modules 42a to 42d and 44a to 44d are prevented from being exposed and deteriorating in appearance. The shield 18 may be formed of a colored and opaque synthetic resin, or may be formed of a translucent synthetic resin (for example, polycarbonate).

  As a light source of the irradiation means 40, all light sources, such as a fluorescent lamp and a light bulb (bulb), can be used besides LED. Among them, the LED can be suitably used as a light source of the irradiation unit 40 because it consumes less power and there is no fear of running out of a bulb. Further, by using the LED as the light source, an effect that the amount of light to be irradiated (illuminance) can be easily controlled can be obtained. The color of the light irradiated from the irradiation means 40 is not specifically limited, In addition to white, colored colors, such as red, blue, and green, may be sufficient.

  Further, as shown in FIG. 2, a synthetic resin cover 16 can be attached around the four legs 15a to 15d provided on the base 12, as required. The cover 16 is provided to cover the legs 15a to 15d of the base 12, and is used to attach the LED modules 42a to 42d and 44a to 44d so as not to block the light irradiated by the irradiation means 40. It is attached to the inner side of the attachment part 14.

Hereinafter, the illumination aspect of the in-vehicle illumination device 20 will be described.
First, when the door 9 is opened by an occupant trying to get into the vehicle 2, the opening / closing detection means detects the opening operation of the door 9. Thereby, the side part irradiation means 42 and the rear part irradiation means 44 light. Specifically, all of the four LED modules 42 a to 42 d constituting the side irradiation unit 42 are turned on, and two of the four 44 a to 44 d constituting the rear irradiation unit 44 are arranged on the rear side. LED modules 44b and 44d are turned on (hereinafter referred to as illumination mode A).
Next, when the occupant is seated on the seat 6 in the second row, the seating detection means 30 detects the occupant's seating. As a result, the side irradiation means 42 is turned off, and only the rear irradiation means 44 is turned on. Specifically, all of the four LED modules 42 a to 42 d constituting the side irradiation unit 42 are turned off, and the two LED modules 44 b and 44 d constituting the rear irradiation unit 44 are kept on. (Hereinafter referred to as illumination mode B).
When the door 9 is closed, the closing operation of the door 9 is detected by the open / close detection means. After a predetermined time (for example, about 15 to 30 seconds) has elapsed since the closing operation of the door 9 was detected, the rear irradiation unit 44 is turned off by a timer set in advance.

  In order to realize the lighting mode A and the lighting mode B, a known control unit capable of controlling the lighting in the vehicle interior of the vehicle can be used. For example, a control unit for an electronic device installed inside the vehicle 2 can be used. The control unit receives the detection signal from the open / close detection means and the detection signal from the seating detection means 30, and turns on and off the side irradiation means 42 and the rear irradiation means 44 based on the received signals. A control signal can be output.

  In the illumination mode A, light is irradiated from both side portions and the rear portion of the base 12 of the seat 4 in the first row. Thereby, the periphery of the base 12 becomes bright. As a result, the visibility of the feet of the occupants who have entered the vehicle 2 is improved, and the safety when riding is improved. Further, when the vehicle 2 is boarded at night, only the periphery of the pedestal 12 is brightened, which brings about a fantastic effect as if the seat 4 is floating in the light.

  In the illumination mode B, strong light is irradiated from the rear part of the base 12 of the seat 4 in the first row. Since this light illuminates the feet of the occupants seated in the second row of seats 6, the visibility of the feet of the occupants is improved, and the occupants can easily organize the luggage placed on the feet.

The in-vehicle lighting device 20 according to the present embodiment can not only improve the visibility of the feet of the occupant by switching the lighting mode from the lighting mode A to the lighting mode B, but also the occupant who has boarded the vehicle 2 Shows the effect of welcoming you.
That is, by smoothly switching the lighting mode from A to lighting mode B, it appears to the occupant seated in the seat 6 as if light moves from both sides of the base 12 of the seat 4 in the front row toward the rear. . As a result, the production effect as if the light is moving toward the occupant seated on the seat 6 is exerted.

Instead of the above illumination mode B, the following illumination mode can also be implemented. That is, when the occupant is seated on the seat 6 in the second row, the seating detection means 30 detects the occupant's seating. This not only turns off the side irradiation means 42 but also increases the illuminance of the rear irradiation means 44. Specifically, all of the four LED modules 42a to 42d constituting the side irradiation means 42 are turned off, and the four LED modules 44a to 44d constituting the rear irradiation means 44 are not yet turned on. The two LED modules 44a and 44c are turned on (hereinafter referred to as illumination mode C).
By switching from the illumination mode A to the illumination mode C, the light movement mode looks more natural. As a result, the effect of welcoming the passenger is more effectively exhibited.

  The in-vehicle lighting device 20 can be installed in each seat installed in the vehicle 2. When the in-vehicle lighting device 20 is installed for each seat, the lighting mode is switched in accordance with the seating timing of each occupant who rides on the vehicle 2, so that it can function as a welcome light that welcomes the occupant individually.

  The side irradiating means 42 and the rear irradiating means 44 are installed so that at least a part of the irradiated light is directed downward. For this reason, since the irradiated light is reflected on the floor surface in the passenger compartment, the illumination method is indirect illumination. In this case, since the irradiated light does not directly enter the eyes of the occupant, flickering and dazzling eyes are suppressed. For this reason, not only is the safety of the passengers secured, but a calm impression and a high-class production effect are brought about.

The present invention is not limited to the above embodiment.
For example, when the lighting mode A is switched to the lighting mode B, the four LED modules 42a to 42d constituting the side irradiation means 42 are not turned off all at once, but the front LED modules 42a and 42c are turned off first. Then, the rear LED modules 42b and 42d may be controlled to be turned off. In this case, it is possible to exert a production effect as if light slowly flows toward the passenger. In addition, if an LED module that irradiates colored light is used, it is also possible to exhibit an effect that looks like the color gradually changes. Further, when the side illumination means 42 is turned off, if the illuminance of the four LED modules 42a to 42d is controlled to gradually decrease, the light moves more smoothly toward the occupant seated on the seat 6. It is possible to produce a production effect as if coming.

  In the above embodiment, the example in which the seat 4 in the first row from the front is the “second seat” and the seat 6 in the second row from the front is the “first seat” is shown. It is not limited to the embodiment. For example, even when the seat 6 in the second row from the front is the “second seat” and the seat 8 in the third row from the front is the “first seat”, the same operation as in the above embodiment is performed. Is possible. In the case where both of these are performed at the same time, the “sitting detection means” linked to the irradiation means attached to the seat 4 in the front row and the seats 8 in the rear row for the seats 6 in the second row from the front. Both “irradiation means” linked to the attached seating detection means are attached. In short, the in-vehicle illumination device according to the present invention can be applied to any seat as long as it is a pair of seats installed at the front and rear.

1 is a perspective view showing a one-box type vehicle to which an in-vehicle illumination device according to an embodiment is applied. It is a side view which shows the arrangement | positioning relationship of the 1st row seat and the 2nd row seat. It is a perspective view of the seat of the 1st row. It is a perspective view of the 2nd row seat. It is a perspective view of the irradiation means attached to the base of the seat of the 1st row, and its lower surface. It is the front view which looked at the seat of the 1st line from the front. It is the side view which looked at the seat of the 1st row from the left side.

Explanation of symbols

2 Vehicles 4, 6, 8 Seat 9 Door 12 Pedestal 13 Lower surface 14 Mounting portion 20 In-vehicle illumination device 30 Seating detection means 40 Irradiation means 42 Side irradiation means 44 Rear irradiation means 42a to 42d LED modules 44a to 44d LED modules

Claims (2)

An opening / closing detecting means for detecting an opening / closing operation of a door of the vehicle, a seating detecting means for detecting a seating of an occupant on the first seat, and a second seat installed in a front row of the first seat. An in-vehicle illuminating device provided with the irradiation means,
The irradiating means is attached to the left and right side portions of the lower surface of the cushion pedestal for mounting and supporting the cushion pad of the second seat, and attached to the rear portion of the lower surface of the pedestal of the second seat. The side irradiation means and the rear irradiation means are attached in a state in which the light to be irradiated is directed downward,
When the opening / closing detection means detects the opening operation of the door, the side irradiation means and the rear irradiation means are turned on,
When the seating detection means detects the seating of an occupant, the side illumination means is turned off and only the rear illumination means is turned on. The in-vehicle lighting device according to claim 1,
The in-vehicle illumination device characterized in that when only the rear irradiation means is lit, the illuminance of the rear irradiation means increases.

Images